Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 2 Complete, well-documented, and agent-ready

Microsoft Azure FileSystem APIThe FileSystem API from Microsoft Azure — 2 operation(s) for filesystem.76.1 Microsoft Azure FileSystems APIThe FileSystems API from Microsoft Azure — 3 operation(s) for filesystems.76.1

Strong 4 Solid coverage with minor gaps

Modal Network File Systems APINetwork File Systems for shared, mountable file storage across multiple functions and sandboxes.64.5 Daytona Filesystem APIThe Filesystem API from Daytona — 12 operation(s) for filesystem.62.9 Bem Filesystem APIUnix-shell-style nav over parsed documents and the cross-doc memory store.60.1 Azure Data Lake Storage Gen2 REST APIThe Azure Data Lake Storage Gen2 REST APIs allow interaction with Azure Blob Storage through a file system ...58.3

Developing 9 Usable, with meaningful gaps to close

Pure Storage Filesystems APIA FlashArray can contain up to 24 separate file systems, each with a number of directories that can be expo...52.6 Quadrillion Filesystems APIThe filesystems API from Quadrillion — 3 operation(s) for filesystems.52.5 Amazon FSx Filesystems APIOperations for creating and managing file systems51.8 Lambda Cloud APIThe Lambda Cloud API is the REST control plane for launching, listing, starting, stopping, and terminating ...51.7 Lambda Cloud FilesystemsLambda Cloud Filesystems provide persistent, sharable storage attached to on-demand instances for datasets ...51.7 Lambda Filesystems APIThe Filesystems API from Lambda — 3 operation(s) for filesystems.51.7 Weka Filesystem APIThe Filesystem API from Weka — 16 operation(s) for filesystem.47.7 ETH Zurich – Swiss Federal Institute of Technology Filesystem APIThe filesystem API from ETH Zurich – Swiss Federal Institute of Technology — 23 operation(s) for filesystem.41.8 Terminal Use Filesystems APIThe Filesystems API from Terminal Use — 9 operation(s) for filesystems.41.4

Thin 9 Limited public surface area

JarvisLabs Filesystems APIPersistent storage volumes.38.7 VAST Data Filesystem APIThe filesystem API from VAST Data — 1 operation(s) for filesystem.37.8 Polymath Robotics Filesystem APIThe filesystem API from Polymath Robotics — 3 operation(s) for filesystem.36.8 Azure Data Lake Storage Filesystems APIFilesystems operations34.8 Scrapybara Filesystem APIThe Filesystem API from Scrapybara — 3 operation(s) for filesystem.34.2 Infinidat Filesystems APIThe filesystems API from Infinidat — 2 operation(s) for filesystems.33.7 Terrain Discovery Environment API Filesystem APIiRODS filesystem operations - browse, create, move, delete files and directories32.5 Egnyte Filesystem APIThe Filesystem API from Egnyte — 2 operation(s) for filesystem.28.2 HttpFS REST APIHTTP REST API gateway supporting both webhdfs and httpfs operations for HDFS access.27.9

Emerging 3 Early or largely undocumented

File System Operations APISystem calls for file and directory manipulation, including open, read, write, and file descriptor management.15.8 procfsVirtual filesystem mounted at /proc that exposes process and kernel information through a file-based interf...12.3 sysfsVirtual filesystem mounted at /sys that exports kernel object and device information to userspace.12.3

Companies reaching this through an API (19)

These companies publish an API, specification or operation carrying “Filesystem” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Apache Hadoop Azure Blob Storage Azure Data Lake Storage Bem Daytona Egnyte ETH Zurich – Swiss Federal Institute of Technology Infinidat JarvisLabs Lambda Linux Microsoft Azure Modal Polymath Robotics Pure Storage Quadrillion Scrapybara UNIX System Call VAST Data

Score breakdown

Frequency

49.5

log-scaled weighted occurrences

Breadth

0.2

spread across providers

Quality lift

50.6

mean composite of providers using it

Cohesion

5.2

strength of nearest seed neighbor

Where this tag comes from

Provider tag7

Api tag27

Openapi tag16

Openapi op tag76

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this

find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This tag

curl "https://apis.io/api/v1/tags/filesystem"

All tags

curl "https://apis.io/api/v1/tags?limit=25"

As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/filesystem"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/filesystem/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

Filesystem

Providers using this tag (7)

APIs with this tag (27)